arolla pine vs true pine

arolla pine and true pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
arolla pine	Yes	No	No	No
true pine	Yes	No	No	No

As nouns, true pine is a hypernym of arolla pine; that is, true pine is a word with a broader meaning than arolla pine:

arolla pine: large five-needled European pine; yields cembra nuts and a resinous exudate
true pine: a coniferous tree

Other hypernyms of arolla pine include pine, pine tree.

arolla pine (noun)	true pine (noun)
large five-needled European pine; yields cembra nuts and a resinous exudate	a coniferous tree